Chorionscopy and chorionic villi sampling.

@article{Ghirardini1986ChorionscopyAC,
  title={Chorionscopy and chorionic villi sampling.},
  author={G L Ghirardini and Claudio O. Gualerzi and F Fochi and Lorenzo Spreafico and P Agnelli and M Diazzi},
  journal={Acta Europaea fertilitatis},
  year={1986},
  volume={17 6},
  pages={495-9}
}